A well-known real estate agent under investigation for underquoting is the brother of a female author charged with offences relating to child abuse material. 

Josh Tesolin and the Ray White branch at Quakers Hill in north-west Sydney are being probed by NSW Fair Trading ‘following proactive compliance blitzes into underquoting and complaints’.

Daily Mail Australia can reveal his sister Lauren Ashley Mastrosa, 33, is facing court over charges relating to her erotic fiction novel ‘Daddy’s Little Toy’.

Mastrosa has also been known as Lauren Tesolin-Mastrosa and her pen names of Lauren Ashley and Tori Wood. 

Lawyers representing Mr Tesolin declined to comment when contacted by Daily Mail Australia. 

Mastrosa was arrested at her Quakers Hill home on March 22 and charged with possessing, disseminating, and producing child abuse material. 

She has pleaded not guilty. 

‘Daddy’s Little Toy’ describes a man speaking about how he desired a now 18-year-old since she was a toddler. 

Lauren Ashley Mastrosa (pictured) is the sister of Sydney Real Estate agent Josh Tesolin

Lauren Ashley Mastrosa (pictured) is the sister of Sydney Real Estate agent Josh Tesolin 

The 33-year-old Christian charity employee had issued a pre-release of the novel to around 20 advanced readers in March.

The Australian Centre to Counter Child Exploitation received complaints about the book and the Australian Federal Police referred them to NSW Police who arrested her on March 21.

At a hearing on April 14, Mastrosa’s lawyer Mickaela Mate said the allegedly offensive content was between fictional characters who were two consenting adults.

‘[It] is a fantasy within a fiction and hence there are no victims,’ the solicitor said.

As the author’s husband Adam Mastrosa watched on, Ms Mate argued it was necessary for the court to prevent the publication of her client’s details and the case.

But on April 16, Mastrosa lost her bid at Blacktown Local Court.

Online threats made against the woman and her husband, including from a TikToker who referred to the electric chair, were high enough that her safety was at risk, the court was told.

Mastrosa had experienced distress due to these comments against her because child abuse material was seen as heinous.

Josh Tesolin (pictured) is under investigation NSW Fair Trading's Strata & Property Services Taskforce

‘Being called a pedophile online is something that sticks in the community,’ Ms Mate told the court.

She also argued that any magistrate who heard the matter in the future could be influenced because they had read about the widely reported ‘memorable’ case.

The case stuck out because her client worked for a Christian charity, BaptistCare, while writing about allegedly taboo material, the court heard.

‘It is so memorable because my client is otherwise… so ordinary,’ Ms Mate said.

Barrister Matthew Lewis SC, representing News Corp, opposed any suppression, saying details about the case had already gone viral worldwide.

‘It’s almost akin to trying to stop the tide – it’s gone,’ he said.

Magistrate Rami Attia declined to make the orders, saying there was no expert evidence Mastrosa was at risk of harm or self-harm from further reporting.

This was despite the author’s ‘deep-seated fear’ of attending court and her solicitor’s genuine concerns for her wellbeing, the magistrate said.

Lauren Ashley Mastrosa (left), Annette Tesolin (middle) and Josh Tesolin (right)

Lauren Ashley Mastrosa (left), Annette Tesolin (middle) and Josh Tesolin (right)

He also said none of the online threats were elevated enough to warrant the court shielding her identity.

Any suggestion a magistrate could be influenced by media reports of the matter was also rejected.

Mastrosa did not appear in court for the hearings. Her matter will return to court on June 5.

A NSW Fair Trading spokeswoman told Daily Mail Australia the investigation into Mr Tesolin is ongoing. 

‘The Strata and Property Services Taskforce within NSW Fair Trading is investigating Quakers Hill Ray White Real Estate and Josh Tesolin following proactive compliance blitzes into underquoting and complaints,’ she said.

‘As this investigation is ongoing, no further comment is available at this time,’ she said. 

Daily Mail Australia does not allege Mr Tesolin has engaged in underquoting, only that there is reason for NSW Fair Trading to investigate him. 

A Ray White spokeswoman told Daily Mail Australia the agency was ‘proud of our transparency, professionalism and adherence to NSW Fair Trading requirements’.

‘Josh Tesolin is not aware of any personal investigation into him,’ she said.

‘Rather, on 16 March 2023, the corporate licensee responded to an investigation by NSW Fair Trading; since that date, there has been no penalty, fine or regulatory action taken by NSW Fair Trading against the corporate licensee or Mr Tesolin.’

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